GB1106989A - Improvements in the cooling of dynamoelectric machines - Google Patents

Improvements in the cooling of dynamoelectric machines

Info

Publication number
GB1106989A
GB1106989A GB34405/66A GB3440566A GB1106989A GB 1106989 A GB1106989 A GB 1106989A GB 34405/66 A GB34405/66 A GB 34405/66A GB 3440566 A GB3440566 A GB 3440566A GB 1106989 A GB1106989 A GB 1106989A
Authority
GB
United Kingdom
Prior art keywords
rotor
gas
ducts
cooling
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB34405/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1106989A publication Critical patent/GB1106989A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator

Abstract

1,106,989. Cooling dynamo-electric machines. GENERAL ELECTRIC CO. 1 Aug., 1966 [16 Sept., 1965], No. 34405/66. Heading H2A. A dynamo-electric machine, e.g. a turbinedriven generator, is of the type having an airtight casing 1 filled with cooling gas, e.g. hydrogen, a stator core 2, a rotor 4 defining an air gap 11 therewith and means such as fans 10 for recirculating and heat exchangers 9 for cooling the gas; the assembly includes pluralities of gas inlet ducts 12, and gas outlet ducts 13 axially spaced therefrom, on the rotor, a plurality of diagonally extending cooling passages inside the rotor windings connecting the inlet and outlet ducts, means including radial stator ducts 5a for furnishing cooling gas to inlet zones 14 of the air gap, and similar ducts 5b for conducting gas away from outlet zones 15; the ducts 12 and 13 are shaped to pump the gas along the cooling passages. It is characterized by stator baffle portions 17, each co-operating with a rotor baffle portion 18 between inlet zones and outlet zones. Preferably baffle portion 17 is of foam rubber and is interrupted at the bottom to leave a gap (for a rotor skid) of approximately 60 degrees angular extent. Preferably, portion 18 is a complete non-magnetic steel ring shrunk on to the rotor. Alternatively, either the stator baffle portion or the rotor baffle portion may be omitted, the remaining portion then being radially extended appropriately.
GB34405/66A 1965-09-16 1966-08-01 Improvements in the cooling of dynamoelectric machines Expired GB1106989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US487798A US3348081A (en) 1965-09-16 1965-09-16 Gap pickup rotor with gas segregating baffles

Publications (1)

Publication Number Publication Date
GB1106989A true GB1106989A (en) 1968-03-20

Family

ID=23937156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34405/66A Expired GB1106989A (en) 1965-09-16 1966-08-01 Improvements in the cooling of dynamoelectric machines

Country Status (4)

Country Link
US (1) US3348081A (en)
JP (1) JPS5021641B1 (en)
CH (1) CH464332A (en)
GB (1) GB1106989A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355394A1 (en) * 1976-06-17 1978-01-13 Gen Electric PERFECTIONED DYNAMO-ELECTRIC MACHINE WITH REVERSE FLOW COOLING
FR2572866A1 (en) * 1984-11-05 1986-05-09 Gen Electric DEFLECTOR FOR IMPROVING THE DISTRIBUTION OF COOLING GAS CURRENTS IN THE AREA OF THE GAS COOLED ELECTRODYNAMIC MACHINE
US5939805A (en) * 1995-04-18 1999-08-17 General Electric Canada Inc Stator shield for a fanless salient pole machine
US6304011B1 (en) 1996-08-09 2001-10-16 The Turbo Genset Company Limited Rotary electrical machines
GB2485184A (en) * 2010-11-04 2012-05-09 Evo Electric Ltd Internal cooling of axial flux electrical machines
US10927762B2 (en) 2014-10-02 2021-02-23 Rolls-Royce Plc Cooled component

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH461617A (en) * 1966-04-07 1968-08-31 Licentia Gmbh Electric machine with section cooling
US3413499A (en) * 1966-06-20 1968-11-26 Gen Electric Generator air gap entrance baffle for cooling stator core end portions
US3461330A (en) * 1967-12-21 1969-08-12 Gen Electric Dynamoelectric machine stator core baffle
US3571635A (en) * 1969-04-07 1971-03-23 Gen Electric Turbine-generator stator frames
US3652881A (en) * 1970-10-15 1972-03-28 Gen Electric Generator ventilation dome and cooler casing construction
US3739208A (en) * 1971-12-03 1973-06-12 Gen Electric Reverse flow cooling system for a dynamoelectric machine
CH545027A (en) * 1972-05-09 1973-11-30 Bbc Brown Boveri & Cie Electric machine
US3968388A (en) * 1972-06-14 1976-07-06 Kraftwerk Union Aktiengesellschaft Electric machines, particularly turbogenerators, having liquid cooled rotors
US3822389A (en) * 1972-08-24 1974-07-02 Gen Electric Liquid coolant pressurizing device for dynamoelectric machines
US3906265A (en) * 1974-05-15 1975-09-16 Gen Electric Honeycomb stator inserts for improved generator cooling
US3995180A (en) * 1975-03-10 1976-11-30 General Electric Company Generator rotor outlets for increased ventilation
US4051400A (en) * 1976-02-05 1977-09-27 General Electric Company End gas gap baffle structure for reverse flow cooled dynamoelectric machine
US4264834A (en) * 1976-06-01 1981-04-28 General Electric Company Flexible serrated abradable stator mounted air gap baffle for a dynamoelectric machine
US4071791A (en) * 1976-06-01 1978-01-31 General Electric Company Reverse flow cooled dynamoelectric machines with novel cooling system
US4363982A (en) * 1981-01-26 1982-12-14 General Electric Company Dual curved inlet gap pickup wedge
US4465947A (en) * 1983-07-13 1984-08-14 General Electric Company Fan diffuser and collector combination for cooling systems in dynamoelectric machines
DE19514592A1 (en) * 1995-04-20 1996-10-24 Abb Patent Gmbh Electrical machine
DE69923799T2 (en) * 1999-09-03 2006-02-09 Hitachi, Ltd. DYNAMOELECTRIC MACHINE
US6737768B2 (en) * 2000-03-31 2004-05-18 Hitachi, Ltd. Rotating electric machine
US6803688B2 (en) * 2002-07-31 2004-10-12 General Electric Company Isolation of generator bearing housing from generator enclosure and methods therefor
GB2393584B (en) * 2002-09-26 2006-06-21 Alstom Gas-cooled generator
NO331965B1 (en) * 2010-09-29 2012-05-14 Rolls Royce Marine As Electric permanent magnet motor
RU2494515C2 (en) * 2011-08-18 2013-09-27 Закрытое Акционерное Общество "Нефтьстальконструкция" Electrical machine
US9698638B2 (en) * 2011-12-29 2017-07-04 Philip Totaro Electric machine cooling system
EP2860852A1 (en) * 2013-10-14 2015-04-15 Siemens Aktiengesellschaft Device for deflecting at least one portion of a cooling fluid flowing axially in a space between a rotor and a stator of a rotating electric machine
US9929625B2 (en) 2014-07-17 2018-03-27 Rolls-Royce Corporation Negative pressure motor sealing
CN107078603B (en) 2014-11-18 2019-11-05 三菱电机株式会社 Rotating electric machine
EP3537576B1 (en) * 2018-03-06 2022-05-18 Siemens Gamesa Renewable Energy A/S Generator for a wind turbine
CN113708548B (en) * 2021-09-06 2023-12-08 华能通辽风力发电有限公司 Air-cooled generator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110827A (en) * 1960-08-12 1963-11-12 Westinghouse Electric Corp Dynamoelectric machine
US3265912A (en) * 1964-06-15 1966-08-09 Westinghouse Electric Corp Dynamoelectric machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355394A1 (en) * 1976-06-17 1978-01-13 Gen Electric PERFECTIONED DYNAMO-ELECTRIC MACHINE WITH REVERSE FLOW COOLING
FR2572866A1 (en) * 1984-11-05 1986-05-09 Gen Electric DEFLECTOR FOR IMPROVING THE DISTRIBUTION OF COOLING GAS CURRENTS IN THE AREA OF THE GAS COOLED ELECTRODYNAMIC MACHINE
GB2166909A (en) * 1984-11-05 1986-05-14 Gen Electric Baffle for improving coolant gas flow distribution in the gap region of a gas cooled dynamoelectric machine
US4609840A (en) * 1984-11-05 1986-09-02 General Electric Company Baffle for improving coolant gas flow distribution in the gap region of a gas cooled dynamoelectric machine
US5939805A (en) * 1995-04-18 1999-08-17 General Electric Canada Inc Stator shield for a fanless salient pole machine
US6304011B1 (en) 1996-08-09 2001-10-16 The Turbo Genset Company Limited Rotary electrical machines
GB2485184A (en) * 2010-11-04 2012-05-09 Evo Electric Ltd Internal cooling of axial flux electrical machines
GB2485184B (en) * 2010-11-04 2013-12-11 Evo Electric Ltd Axial flux electrical machines
US9525324B2 (en) 2010-11-04 2016-12-20 Michael Lamperth Axial flux electrical machines
US10927762B2 (en) 2014-10-02 2021-02-23 Rolls-Royce Plc Cooled component

Also Published As

Publication number Publication date
CH464332A (en) 1968-10-31
DE1538810B2 (en) 1975-06-12
JPS5021641B1 (en) 1975-07-24
DE1538810A1 (en) 1970-02-19
US3348081A (en) 1967-10-17

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